Bromellite, whose name derives from the Swedish chemist Magnus von Bromell (1670–1731), is a white oxide mineral. The mineral form of beryllium oxide, it is found in complex pegmatite manganese-iron deposits, but is more frequently made synthetically. This is a rare mineral to encounter in its natural state, but it has been made synthetically for over 40 years.
Uses of bromellite
Bromellite, as a
beryllium-containing mineral, has some uses. Industrially, natural specimens have the potential to be an ore of
beryllium. It is one of the
that can be used in the manufacture of artificial
. As an additive, bromellite confers high mechanical strength and very high thermal conductivity. In
, it is used as a moderator for fast
.
containing bromellite are used in
electronics, as well as
for the melting of
uranium and
thorium. Bromellite, both natural and synthetic, is also used as a
gemstone or as a collector's mineral. As a
gemstone bromellite is extremely rare. To date there has been found only one crystal that is large enough to be cut. In 2000 Dunil Palitha Gunasekara of Ratnapura, Sri Lanka purchased a rough colorless 17.77-ct crystal from Ratnapura. He cut it into 15 pieces, of which 3 pieces with 2.80, 1.92 and 0.68 ct were sent to the GIA laboratory for further testing, since he thought them to be
johachidolite at first. These gemstones are the first reported examples of faceted gem-quality bromellite.
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R.V. Gaines et al., Dana's New Mineralogy, 8th edition, John Wiley & Sons, NY, 1997, p 211.
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SFM and Sam Muhlmeister, Gems & Gemology, Volume 38, No 3, Fall 2002, pp 250–251.
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WebMineral Listing
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MinDat Listing
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Dictionary of Mining, Mineral, and Related Terms
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Gemmologist Murray Burford
